CLAS physics database search results Measurement E216M864 CLAS12 Run Group A Krishna Chandra 2018 theta(p) dsigma/d(−cos(theta_pr)) Stat. error Syst. error deg mcbn/rad mcbn/rad mcbn/rad 9 0.220995 0.0298153 0.03161594 27 0.215065 0.0186526 0.03299645 45 0.1502 0.0130901 0.01969544 63 0.17681 0.016536 0.02059335 81 0.232021 0.0158391 0.02109116 99 0.310633 0.0169346 0.02564671 117 0.340695 0.0234661 0.02890772 135 0.364194 0.0213345 0.03678776 153 0.473333 0.0314175 0.0372265 171 0.552456 0.0512654 0.05133053